Datasheet > MAX20459ATJA/V+

MAX20459ATJA/V+

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
美信 - MAXIM		开关
页数	文件大小	规格书
57页	1800K
描述
Switching Regulator/Controller,

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中文翻译

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技术参数
数据手册

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MAX20459ATJA/V+ 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	HVQCCN, LCC32,.20SQ,20	Reach Compliance Code：	unknown
风险等级：	5.75	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	28 V	最小输入电压：	4.5 V
标称输入电压：	14 V	JESD-30 代码：	S-XQCC-N32
长度：	5 mm	功能数量：	1
端子数量：	32	最高工作温度：	125 °C
最低工作温度：	-40 °C	标称输出电压：	5.15 V
封装主体材料：	UNSPECIFIED	封装代码：	HVQCCN
封装等效代码：	LCC32,.20SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	筛选级别：	AEC-Q100
座面最大高度：	0.8 mm	最大供电电流 (Isup)：	0.02 mA
标称供电电压 (Vsup)：	14 V	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	2450 kHz
温度等级：	AUTOMOTIVE	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	5 mm	Base Number Matches：	1

MAX20459ATJA/V+ 数据手册

Click here for production status of specific part numbers.

MAX20459

Automotive High-Current Step-Down Converter

with USB-C Dedicated Charging Port

General Description

Benefits and Features

The MAX20459 combines a 3A high-efficiency, automo-

tive-grade, step-down converter, a USB Type-C DFP con-

● One-Chip Type-C Solution Directly from Car Battery to

Portable Device

troller, and automatic BC1.2 DCP, Apple , and Sam-

• USB Type-C-Compliant DFP Controller

• Integrated iPhone®/iPad®, Samsung® and BC1.2

DCP Charger Detection

• 4.5V to 28V Input (40V Load Dump), Synchronous

Buck Converter

sung dedicated charger-detection circuitry. The device

also includes a USB load current-sense amplifier and con-

figurable feedback-adjustment circuit designed to provide

automatic USB voltage compensation. The device limits

the USB load current using both a fixed internal peak-cur-

rent threshold and a user-configurable external current-

sense USB load threshold.

• 5V to 7V, 3A Output Capability

• Standalone Device or I C Configuration Options

and Fault Autorecovery

The MAX20459 is optimized for high-frequency operation

and includes programmable frequency selection from

310kHz to 2.2MHz, allowing optimization of efficiency,

noise, and board space based on application require-

ments. The fully synchronous DC-DC converter integrates

high-side and low-side MOSFETs along with an external

SYNC input/output, and can be configured for spread-

spectrum operation. Additionally, thermal foldback is im-

plemented to avoid excessive heating of the module while

charging at high ambient temperature.

● Optimal USB Charging and Communication for

Portable Devices

• User-Programmable Voltage Gain Adjusts Output

for up to 500mΩ Cable Resistance

• User-Programmable USB Current Limit

● Low-Noise Features Prevent Interference with AM

Band and Portable Devices

• Fixed-Frequency 310kHz to 2.2MHz Operation

• Fixed-PWM Option at No Load

• Spread Spectrum for EMI Reduction

• SYNC Input/Output for Frequency Parking

The MAX20459 allows flexible configuration and ad-

vanced diagnostic options for both standalone and super-

vised applications. The device can operate as a true one-

chip solution that offers advanced fault autorecovery and

can be programmed using external programming resistors

● Robust Design Keeps Vehicle System and Portable

Device Safe in an Automotive Environment

• Short-to-Battery Protection on V

, HVD± Pins

BUS

• ±15kV Air/±8kV Contact (330pF, 330Ω)

• ±15kV Air/±8kV Contact ISO 10605 (330pF, 2kΩ)

• ±15kV Air/±8kV Contact IEC 61000-4-2 (150pF,

330Ω)

• Overtemperature Protection, Warning, and

Intelligent Current Foldback

and/or internal I C registers.

The MAX20459 is available in a small 5mm x 5mm 32-pin

TQFN package and is designed to minimize required ex-

ternal components and layout area.

• AEC-Q100 Qualified

• -40ºC to +125ºC Operating Temperature Range

Applications

● Dedicated USB Charging Port (DCP)

• Host and Hub Module Dedicated Charging Ports

• Dedicated Charging Modules

*Tested in Typical Application Circuit as used on the

MAX20459 Evaluation Kit

Ordering Information appears at end of datasheet.

Apple is a registered trademark of Apple Inc.

Samsung is a registered trademark of Samsung Electronics

Co., Ltd.

19-100676; Rev 0; 11/19

12 3 4 5 6 7...57

中文翻译

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与MAX20459ATJA/V+相关器件

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MAX2045ETJ+	MAXIM	获取价格	Baseband Circuit, 5 X 5 MM, 0.80 MM HEIGHT, TQFN-32
MAX2045ETJ+T	MAXIM	获取价格	暂无描述
MAX2045ETJ-T	MAXIM	获取价格	High-Gain Vector Multipliers
MAX2045EVKIT	MAXIM	获取价格	Fully Assembled and Tested
MAX2045EVKIT\|MAX2046EVKIT\|MAX2047EVKIT	MAXIM	获取价格	Evaluation Kits for the MAX2045/MAX2046/MAX2047
MAX2046	MAXIM	获取价格	High-Gain Vector Multipliers
MAX2046	ADI	获取价格	高增益矢量乘法器
MAX20461	MAXIM	获取价格	Automotive High-Current Step-Down Converter with USB-C Protection/Host Charger
MAX20461	ADI	获取价格	汽车应用高电流降压型转换器，具有USB保护/主机充电器

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